<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>svg 的基本使用</title>
</head>
<body>
    <svg xmlns="http://www.w3.org/2000/svg" version="1.1">
        <circle cx="100" cy="50" r="40" stroke="black" stroke-width="1" fill="orange"></circle>
    </svg>
</body>
</html>